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From "Yip Ng (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-883) Enhance GROUP BY clause to support expressions instead of just column references.
Date Tue, 31 Oct 2006 18:30:20 GMT
    [ http://issues.apache.org/jira/browse/DERBY-883?page=comments#action_12445990 ] 
            
Yip Ng commented on DERBY-883:
------------------------------

Some discussions regarding GROUP BY with expression in dev-list:

http://www.nabble.com/Functions-in-GROUP-BY-expressions--%28related-to-DERBY-883%29-tf2517296.html

> Enhance GROUP BY clause to support expressions instead of just column references.
> ---------------------------------------------------------------------------------
>
>                 Key: DERBY-883
>                 URL: http://issues.apache.org/jira/browse/DERBY-883
>             Project: Derby
>          Issue Type: New Feature
>          Components: SQL, Documentation
>    Affects Versions: 10.1.2.1, 10.2.1.6
>         Environment: JDK 1.5.0_05
>            Reporter: Lluis Turro
>         Assigned To: Manish Khettry
>             Fix For: 10.2.1.6
>
>         Attachments: 883.patch.txt, 883.patch3.txt, 883.patch4.txt, 883.patch5.txt, 883.patch6.txt,
883.patch6.txt, 883.patch7.txt
>
>
> This select would return an error syntax on finding "(" after month if group by clause:
> select idissue, month(creation), year(creation), count(distinct idissue)
> where 
>   ....
> group by idissue, month(creation), year(creation)

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